Phil Proger practices antitrust law with emphasis on matters before U.S. and international enforcement agencies, including mergers and cartel investigations, as well as antitrust litigation.

He has extensive experience advising on antitrust issues in a broad range of industries, including health care, chemicals, insurance, media, pharmaceuticals, software, and retail. He has represented companies and individuals in criminal and civil cartel investigations conducted simultaneously in multiple jurisdictions and defended those clients in follow-up class actions, private treble damage actions, and non-U.S. damage actions. He also has handled numerous investigations by antitrust enforcement agencies involving mergers and nonmerger conduct (including conduct involving licensing, patent settlements, and refusals to deal).

Phil has served as a member of the Board of Governors of the American Bar Association (2003-2006), Chair of the ABA Section of Antitrust Law (1998-1999), and Co-Chair of the ABA's 2008 Transition Report to the new Administration on antitrust enforcement. He is a frequent writer and speaker on antitrust topics and has testified before Congress (Senate and House of Representatives), the Federal Trade Commission, the Antitrust Modernization Commission, and the International Competition Policy Advisory Committee. He is a Fellow of the American Bar Foundation, the advisory boards of BNA Antitrust & Trade Regulation Report and The M&A Lawyer, and the Board of Visitors of the University of Maryland School of Law.